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[General] 300-820 Accurate Answers & 300-820 Reliable Test Notes

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【General】 300-820 Accurate Answers & 300-820 Reliable Test Notes

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Cisco 300-820 Exam Topics:
SectionWeightObjectives
Key Concepts25%- Describe the complications of NAT in a Collaboration environment
- Describe the purpose of ICE, TURN and STUN
- Describe Expressway media traversal
- Describe protocol interworking on the Expressway
  • SIP < > H.323
  • IPv4 and IPv6
- Describe Expressway Licensing
  • Option keys
  • Release key
  • License consumption
- Describe SIP media encryption mode
  • Auto
  • Force encrypted
  • Force unencrypted
  • Best effort
- Describe Expressway Core dial plan elements
  • Transforms
  • Search rules
  • Zones
  • Regular expressions
  • Pipes and links
- Describe key Expressway settings
  • DNS
  • Network interfaces
  • Certificates
  • QoS
  • Clustering
  • Network firewall rules
- Describe Expressway backup and restore procedure (stand alone and cluster)
Initial Expressway Configurations25%- Configure key Expressway settings
  • DNS
  • Network interfaces
  • Certificates
  • QoS
  • Clustering
  • Network firewall rules
- Configure Expressway Core dial plan elements
  • Transforms
  • Search rules
  • Zones
  • Regular expressions
  • Pipes and links
- Configure toll fraud prevention on Expressway series (no custom CPL scripts)
- Configure a Business to Business (B2B) collaboration solution
  • DNS records (focus on Microsoft DNS)
  • Certificates (focus on Microsoft CA)
  • Traversal Zones
  • Neighbor Zones
  • Transforms
  • Search rules
  • SIP trunk integration with Cisco Unified Communications Manager
- Troubleshoot a Business to Business (B2B) collaboration solution
  • DNS records (focus on Microsoft DNS)
  • Certificates (focus on Microsoft CA)
  • Traversal Zones
  • Neighbor Zones
  • Transforms
  • Search rules
  • SIP trunk integration with Cisco Unified Communications Manager
Cisco WebEx Technologies25%- Describe the signaling and media flows used in a Cisco WebEx Video Mesh deployment
- Configure WebEx Hybrid Services/Connector
  • Calendar Service (Office 365, Microsoft Exchange, One Button to Push)
  • Message Service (Deployment requirements; expressway requirements, certificates, Call Manager pre-requisites, IM&P prerequisites, deployment models)
  • Directory Services (Deployment requirements; deployment models, infrastructure requirements, active directory configuration, synchronization, WebEx user service assignment)
  • Video Mesh (Deployment requirements including; bandwidth, clustering, endpoint support, video call capacity, ports and protocols, deployment models)
- Describe Cisco Jabber for Cloud and Hybrid deployments with Cisco WebEx Messenger
Mobile and Remote Access25%- Configure a Mobile and Remote Access (MRA) solution
  • DNS records types (not platform-specific)
  • Certificates (not platform specific, covers Unified Communications Manager, IM&P, Expressways, Unity Connection)
  • Unified Communications traversal zones
  • Unified Communications configuration on Expressway
  • HTTP allow list
  • SIP trunk security profile on Cisco Unified Communications Manager
- Troubleshoot a Mobile and Remote Access (MRA) solution
  • DNS records (focus on Microsoft DNS)
  • Certificates (focus on Microsoft CA, covers Unified Communications Manager, IM&P, Expressways, Unity Connection)
  • Unified Communications traversal zones
  • Unified Communications configuration on Expressway
  • HTTP allow list
  • SIP trunk security profile on Cisco Unified Communications Manager

Cisco 300-820 Domains to NailTo attain a passing score in the Cisco 300-820 exam, the candidate must ace four exam domains and all the terms included in them. These exam objectives are as follows:
  • Configurations of Initial Expressway (25%)The second domain for the Cisco 300-820 test deals with Expressway initial arrangements. In particular, it will ask the entrant to configure various settings for the expressway that include DNS, network interfaces, certificates, clustering, QoS, and networking firewall regulations. Furthermore, it also includes the configuration of the core Expressway dial plan components such as transforms, search rules, zones, regular expression, and pipes & links. The candidate should also be capable of configuring the Expressway series with the help of prevention measures of toll fraud without CPL custom scripts. Next, this section of the real exam also deals with configuring B2B solution collaboration components that include Microsoft DNS records, Microsoft CA, traversal zones, neighbor zones, transforms, search rules, and the SIP integration for trunks. At last, such an area discusses how to troubleshoot the B2B solution as well as its elements.
  • Remote Access & Mobile (25%)This part of the official exam is all about remote access as well as various mobile solutions. It consists of questions regarding the configuration of mobile and remote access solutions or MRA for short. This includes components such as DNS record types, certificates, traversal zones for unified communications & the configuration on Expressway, HTTP allow lists, and the SIP trunk profile for security on the Unified Communications Manager of Cisco. The applicant should also be capable of troubleshooting the MRA solutions along with all its components like Microsoft CA, IM&P, Unity Connection, and Expressways if to mention a few.
  • Technologies of WebEx (25%)The final sector of 300-820 CLCEI exam consists of the concepts and configuration of the WebEx technologies of Cisco. So, in the first place, the entrant needs to be capable of describing the media flows in addition to signaling in the Cisco WebEx Video Mesh execution. In addition to that, this section includes the configuration of WebEx Hybrid/Connector Services that comprise the calendar services like Office 365, message services such as IM&P prerequisites, user WebEx assignment directory services, and bandwidth, endpoint, and clustering video mesh. Here, the applicant also needs to consider all the deployment requirements of the aforementioned services. Finally, this domain details the concept of Jabber offered by Cisco for Cloud & Hybrid installations.
  • Key Concepts (25%)The first portion of the final exam includes the key concepts of the collaboration solutions. This way, the candidate is expected to have a thorough understanding of the NAT concept in regards to Collaboration environments. It is also essential for you to know about STUN, ICE, and TURN as well as their purpose. This domain also expects the entrant to have knowledge about the Expressway for the Media Traversal and protocol networking on it. These protocols include H.323 SIP, IPv6, and IPv4. Furthermore, the applicant should be capable of describing Expressway Licensing and its components such as the Option keys, Release key, and license consumptions. The concept of SIP media for the encryption mode, the core Expressway dial plan, and their components will as well be tested in this section. Finally, such a scope touches on various important settings for Expressway such as DNS, network interfaces, certificates, QoS, clustering, and firewall rules. Overall, within such a topic, you'll get to know more about such concepts like Force encrypted/unencrypted, best effort, pipes, links, zones, and auto.

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Cisco Implementing Cisco Collaboration Cloud and Edge Solutions Sample Questions (Q36-Q41):NEW QUESTION # 36
An organization wants to be able to call IP addresses and URI addresses. An engineer must configure Cisco Expressways to manage this request from the endpoints in the organization. How would the engineer configure the Expressways to allow these calls to be completed to external IP addresses?
  • A. Set calls to unknown IP addresses to direct on the Cisco Expressways, and add a search rule on the Expressway-E
  • B. Set calls to unknown IP addresses to indirect on the Cisco Expressways, and add a search rule on the Expressway-E
  • C. Use search rules to manage calls to IP addresses, and the direct/indirect setting on the Expressway is used as a fallback only if the search rules do not exist
  • D. Set calls to unknown IP addresses to indirect on the Expressway-C and direct on the Expressway-E, and add a search rule on the Expressway-E
Answer: D
Explanation:
https://www.cisco.com/c/en/us/td ... ay/admin_guide/X14-
0/exwy_b_cisco-expressway-administrator-guide/exwy_m_dial-plan-and-call-processing.html

NEW QUESTION # 37
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?
  • A. You must have the Intercluster Sync Agent working across your IM and Presence clusters.
  • B. Your IM and Presence Service clusters must have Multiple Device Messaging disabled.
  • C. AXL service should be activated only on the publisher of each IM and Presence cluster.
  • D. You must have the Intercluster Lookup Service working across all of your IM and Presence clusters.
Answer: A
Explanation:
The Cisco Sync Agent must be running on the database publisher node of each intercluster peer on the local and remote IM and Presence database publisher nodes.
https://www.cisco.com/c/en/us/td ... onfigAdminGuide/11_
5_1/cup0_b_config-and-admin-guide-1151su5/cup0_b_imp-system-configuration-
1151su5_chapter_01100.pdf

NEW QUESTION # 38
Refer to the exhibit. A collaboration engineer creates an allow list test file for a Mobile and Remote Access deployment. Which lines are needed to format the test in the file correctly?

  • A. "my deployment", block, GET https://myServer:8443/myPath, "a block test"
  • B. a block test:https:8443:GET "myServer/myPath":my deployment:block
  • C. a block test,https:8443,GET "myServer/myPath",my deployment:block
  • D. https://myServer:8443/myPath.block, "my deployment", "a block test", GET
Answer: D

NEW QUESTION # 39
Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?
  • A. name
  • B. bandwidth
  • C. version
  • D. connection
Answer: A

NEW QUESTION # 40
A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access. The administrator has validated that the Expressway-E certificate is being trusted by the machine running the Jabber client.
What else can be done to solve this problem?
  • A. Create a new CSR with new information on the SAN field.
  • B. Change the FQDN of the Expressway.
  • C. Include Cisco Unified Communications Manager registration domain in the Expressway-E certificate as a SAN.
  • D. Change the domain name.
Answer: C

NEW QUESTION # 41
......
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